It would be great if the answer were an unequivocal “Yes!” Postpartum depression, or PPD, is one of the most common complication of childbirth, affecting about 1 in 10 new moms, with devastating consequences.

A number of researchers have reported less depression among moms who are breastfeeding, compared with moms who are bottle-feeding. These findings have even led one team of scientists to put forward a theory that bottle-feeding mothers experience grief from not breastfeeding that’s similar to mothers who have had a stillbirth.